is a gas that can cause difficulty breathing and suffocation.
is an invisible, odorless gas that can quickly cause unconsciousness and death.
if a door is ..., it is closed and held shut by retractable metal bars called dogs.
is a device or a structure built to allow rapid exit in case of emergency.
that can create a violent blast.
portable electric light.
non-liquid, non-solid substance.
if a door is ..., it is held open with a fastener.
is a vest that helps a person float in water.
is a ring-shaped device that is thrown to people who fall overboard in order to help them float and pull them back to the ship.
Self-Contained Breathing Apparatus, is a device that provides breathable air.
poisonous material that can cause illness, injury or death.
to cause air to circulate through an area.
powerful light designed for use in water with life boats or life rafts.
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